The UNI-T UT381A measures illumination in labs, offices, commercial spaces, street lighting projects, and more. It has auto range switching, MAX/MIN/AVG readings, data hold functions, and a built-in colour correction coefficient (CCF). The UT381A also has a backlit display, Bluetooth connectivity with app support, and can store up to 99 data sets with adjustable recording intervals from 1 to 59 seconds.
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| Certificates | CE, UKCA, RoHS | |
| Resolution | 0~99.99 lx (99.99 fc), 0.01 lx (0.01 fc) | |
| 100~999.9 lx (999.9 fc), 0.1 lx (0.1fc) | ||
| 1000~400000 lx (37160 fc), 1 lx (1fc) | ||
| Accuracy | ±3% calibration as per standard light source when in 2856 K. | |
| ±6% calibration as per other visual light sources. | ||
| Unit Switch | lx、fc, 1fc=10.764 lx | |
| Auto Range Switch | √ | |
| MAX/MIN/AVG | √ | |
| Data Hold | √ | |
| Colour Correction Coefficient (CCF) | √ | |
| Backlight | √ | |
| Bluetooth APP | √ | |
| Data Record | 99 sets | |
| Record Interval | 1~59 seconds | |
| Measuring Methods of the Probe | Integrated(rotatable)、split design | |
| Real-time | Time is automatically updated manually or via phone APP connection. | |
| Over-range Indication | OL display | |
| Low Battery Indication | Auto power off when the low battery icon flashes for 10 seconds | |
| Auto Power Off | Auto power off if no operation in 10 seconds. (cancelable) | |
| Working Temperature and Humidity | -10°C~50°C, <90%Rh(non-condensing) | |
| Storage Temperature and Humidity | -20°C~70°C, <80%Rh(non-condensing) | |
| Weight | About 257g, not battery included | |
| Characteristics | ||
|---|---|---|
| Power | 3 x 1.5V AAA battery | |
| Battery Life | Over 100 hours (Alkaline batteries, Bluetooth and Backlight are off.) | |
| Product Size | 235 x 64.5 x 39.8mm | |
| Product Net Weight | 257g | |